CN205201034U - Longmen machining center's lathe bed structure - Google Patents

Abstract

The utility model discloses a longmen machining center's lathe bed structure, including left side wallboard and right side wallboard, longmen swing joint in left X to guide rail, right X on to the guide rail, the number of pass strip is connected with left side wallboard and the right side vertical gusset of wallboard looks vertically between left side wallboard and the right side wallboard, at left side wallboard, right side wallboard with be provided with the brace board in the square of two adjacent vertical gussets components each other, left X sets up respectively in the top of left side wallboard, right side wallboard to the guide rail to guide rail, right X. The brace board opposite direction who sets up in adjacent two squares each other for the lathe bed not only also has higher bending resistance in the X direction but also at Y to, Z direction, obtains the whole synthesis bending resistance of stronger lathe bed under the condition of using less material, the lathe bed rigidity is big, can bear great load, and it is few to have a materials used, compact structure, advantage that the whole bending resistance of lathe bed, good, the anti deformability of compressive property be strong, can bear great load.

Description

A bed structure of a gantry machining center

technical field

The utility model relates to a gantry machining center, in particular to a bed structure of the gantry machining center, and belongs to the technical field of metal milling equipment.

Background technique

In the mechanical processing equipment industry, the processing of long workpieces is mostly carried out on the gantry machining center or gantry milling machine. The comprehensive performance of the bed affects the machining accuracy and working ability of the machine tool to a large extent, so the bed needs to have sufficient rigidity and precision retention to ensure Machining accuracy, machining accuracy includes the dimensional accuracy, shape accuracy, position accuracy and surface quality of the workpiece. Generally, the structure of the bed has the following three methods: 1. It is formed by casting gray cast iron; 2. It is formed by welding steel profiles such as square tubes or rectangular tubes; 3. It is welded into a box shape by steel plates.

The gray cast iron bed is rigid enough, but it has the disadvantages of heavy weight, long manufacturing cycle, heavy turnover, and the need to make models or wooden models, and the cost is high. The bed formed by welding steel profiles such as square tubes or rectangular tubes greatly reduces the weight, shortens the manufacturing cycle, and reduces costs, but it also brings disadvantages such as easy deformation, insufficient structural strength, and insufficient rigidity. Stablize. At present, steel plates are often used to weld the bed into a box shape. The upper and lower panels of the bed are arranged in parallel, and are connected by several vertical ribs vertically connected to the upper and lower panels. The vertical ribs are spaced at a certain distance. distance, forming a square box tunnel that runs through both ends of the bed. The cross section of the square box of the tunnel is in the shape of a "mouth". This structure can have a high bending resistance in the direction of the box tunnel of the bed, but the disadvantage of this structure is that, In the transverse direction of the bed square box tunnel structure (that is, in the direction perpendicular to the extension direction of the tunnel box box), the bending resistance is relatively low, and the welding stress of the bed is relatively large, which requires a complicated internal stress removal process. The compressive capacity of the bed is also relatively low, and it is prone to distortion and deformation, and the weight of the bed is still relatively heavy; the weight of the bed itself and the workpiece only rely on the outer wall of the square box and the vertical ribs to transmit the force to the foundation; the bed There are left and right X guide rails and X racks on both sides of the bed, and the gantry is connected to the left and right X guide rails on both sides of the bed, and the gantry passes through the driving device and transmission device installed between the gantry column and the bed. Move in the X direction along the left and right X guide rails. The driving device is generally a gear driven by a motor, and the gear meshes with the X-direction rack. There are cutting resistance, vertical gravity, inertial force, and lateral inertial force, and the inertial force is very large. Especially when carrying out heavy load operations, the bed is prone to resonance and distortion, which reduces the machining accuracy of the machine tool; Therefore, the welding stress of such a bed structure is relatively large, requiring complex internal stress removal treatment processes. At the same time, the bed’s compressive capacity is relatively low, and it is prone to distortion and deformation. The weight of the bed is still relatively heavy, and the manufacturing cost is high. long.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art, to provide a machine with less required materials, compact structure, good overall bending resistance and compression resistance of the bed, high rigidity of the bed, and ability to bear larger loads, and can The bed structure of the gantry machining center reduces the weight of the bed, saves costs, and effectively improves the machining accuracy, durability, and stability of the machine tool.

The technical scheme that the utility model adopts for realizing the above object is:

A bed structure of a gantry machining center, including left and right side wall panels, left X-guided rails, right X-guided rails, and foot components, the gantry is movably connected to the left X-guided rails and right X-guided rails, It is characterized in that: the left side wallboard and the right sidewallboard are connected by several vertical ribs perpendicular to the left sidewallboard and the right sidewallboard; The right side wallboard and the two vertical rib boards adjacent to each other are arranged in the square grid, and the left X-direction rail and the right X-direction rail are respectively arranged on the left side wall board and the right side wall. top of the board.

In order to facilitate the installation of guide rails, the tops of the left side wallboard and the right side wallboard are respectively connected to the left X-guided rail backing plate and the right X-guiding rail backing plate, and the left X-guiding rail and the right X-guiding rail are respectively arranged on The left X guides the rail backing plate, and the right X guides the rail backing plate.

In order to improve the rigidity of the bed, the two ends of the oblique ribs are respectively connected with the left side wall board and the right side wall board.

In order to further improve the rigidity of the bed, the directions of the oblique ribs arranged in the two adjacent squares are opposite, and in the order from front to back in the X direction, the oblique ribs in the first grid The front end is connected with the left wall panel, the rear end of the diagonal-stay panel is connected with the right wall panel, the front end of the diagonal-stay panel in the second square is connected with the right wall panel, the rear end of the diagonal-stay panel is connected with the left The side wall panels are connected in a staggered order;

The intersection of the oblique-stay ribs in the first square, the oblique-stay ribs in the second square, the vertical ribs between the first square and the second square and the wall on the right side constitutes the corner of the bed. The first right bearing point, the oblique ribs in the third grid, the oblique ribs in the fourth grid, the vertical ribs between the third grid and the fourth grid, and the right wall panel The intersection of the bed constitutes the second right bearing point of the bed, and so on;

The intersection of the oblique ribs in the second grid, the oblique ribs in the third grid, the vertical ribs between the second grid and the third grid and the left wall board constitutes the bed. The first left bearing point, the oblique-stay panel in the fourth square, the oblique-stay panel in the fifth square, the vertical rib and the left wall panel between the fourth and fifth squares The intersection of the bed constitutes the second left bearing point of the bed, and so on.

In order to facilitate machine tool installation and precision adjustment, the lower parts of the left bearing point and the right bearing point are connected with foot assemblies for supporting the entire bed and adjusting the accuracy of the bed.

In order to increase the support rigidity and make the stress of the bed more reasonable, the foot assembly is connected to the lower part of the left wallboard of the left bearing point or the lower part of the right wallboard of the right bearing point.

In order to facilitate the installation of the workbench, the tops of the vertical ribs and the oblique ribs are flush, and between the left X guide rail and the right X guide rail, the tops of the vertical ribs and the oblique ribs A workbench backing plate parallel to the left X-guiding rail and the right X-guiding rail is provided, and the workbench backing plate is provided with a workbench fixing connector.

In order to improve the overall performance of the bed and save materials, the distance between the two adjacent vertical ribs is 1.0 to 1.4 times the height of the left or right wall. When the distance between the left side wallboard and the right side wallboard is relatively large, the distance between two adjacent vertical ribs takes a smaller value of 1.0 to 1.4 times, and vice versa takes a larger value .

The beneficial effects of the utility model are:

On the basis of the vertical ribs connected between the left side wall board and the right side wall board of the bed, the square formed by the left side wall board, the right side wall board and two vertical rib boards adjacent to each other There are oblique-stay panels in the grid, and the directions of the oblique-stay panels in the two adjacent grids are opposite. The body not only has a high bending resistance in the X direction but also has a high bending resistance in the Y and Z directions, and obtains a strong overall comprehensive bending resistance of the bed while using less material; the side The wall panels, vertical ribs and oblique ribs form a stable triangle, which can not only bear the vertical downward force and lateral force, but also the relatively messy force when the machine tool is running at high speed, high load and multi-axis synchronous movement. The rigidity and anti-torsion ability are also further enhanced, and its structure is more stable and rigid.

The foot assembly is arranged at the lower part of the bearing point formed by the intersection of the obliquely-stayed ribs, vertical ribs, left wall panels or right wall panels in adjacent squares, and the left X of the gantry is movably connected to it. The guide rail and the right X guide rail are respectively arranged on the top of the left wall panel and the right side wall panel, so that the overall bending and compression resistance of the bed is greatly improved while using less material. The bed has high rigidity and can withstand large loads. It has the advantages of less material used, compact structure, good overall bending resistance and compression resistance of the bed, high rigidity of the bed, strong deformation resistance, and the ability to withstand large loads. , to avoid deformation of the bed due to long-term force, and can reduce the weight of the bed, save costs, effectively improve the machining accuracy of the machine tool, and prolong the service life of the equipment.

Description of drawings

Fig. 1 is an axonometric schematic diagram of a bed structure of a gantry machining center of the present invention.

Fig. 2 is an axonometric schematic diagram of another angle of the bed structure of a gantry machining center of the present invention.

Fig. 3 is a schematic top view of a bed structure of a gantry machining center of the present invention.

Fig. 4 is a partial plan view of one end of the bed structure of a gantry machining center of the present invention.

Fig. 5 is a cross-sectional view of A-A in Fig. 4 .

FIG. 6 is an enlarged schematic diagram of part B in FIG. 4 .

In the figure: 1 Left X-direction rail backing plate, 2 Left side wall panel, 3 Vertical reinforcement plate, 4 Anchor assembly, 5 Workbench fixed connection piece, 6 Workbench backing plate, 7 Right X-direction rail backing plate, 8 Diagonal rib plate, 9 right wall panels.

detailed description

The utility model will be further described below through non-limiting embodiments in conjunction with the accompanying drawings.

Referring to Fig. 1 to Fig. 6, a bed structure of a gantry machining center, the left wall panel 2 and the right side wall panel 9 arranged parallel to each other are symmetrically arranged on both sides according to the length in the horizontal direction and the width in the vertical direction, and the left side The wall panel 2 and the right side wall panel 9 are connected by several vertical ribs 3 perpendicular to the left side wall panel 2 and the right side wall panel 9 to form an overall frame, and the two vertical ribs adjacent to each other The distance between the boards 3 is 1.0 to 1.4 times the height of the left or right wall boards. In the grid formed by the left side wall panel 2, the right side wall panel 9 and two adjacent vertical rib panels 3, an oblique rib panel 8 is arranged, and the two ends of the oblique rib panel 8 are respectively connected to The left side wallboard 2 and the right side wallboard 9 are connected. The left side wall panel 2, the right side wall panel 9, the vertical rib plate 3 and the top surface of the diagonal rib plate 8 are aligned; the direction of the diagonal rib plate 8 arranged in the two adjacent squares is opposite, In the order from front to back in the X direction, the front end of the oblique rib plate 8 in the first grid is connected with the left side wall panel 2, the rear end of the oblique rib plate 8 is connected with the right side wall panel 9, and the second The front end of the oblique-stay panel 8 in the grid is connected with the right side wall panel 9, and the rear end of the oblique-stay panel 8 is connected with the left side wall panel 2, which are sequentially staggered;

The intersection of the oblique rib plate 8 in the first square, the oblique rib plate 8 in the second square, the vertical rib plate 3 between the first square and the second square, and the right wall panel 9 The first right bearing point of the bed, the oblique rib plate 8 in the third grid, the oblique rib plate 8 in the fourth grid, and the vertical rib between the third grid and the fourth grid The intersection of the board 3 and the right side wall board 9 constitutes the second right bearing point of the bed, and so on;

The oblique rib plate 8 in the second square, the oblique rib plate 8 in the third square, the intersection of the vertical rib plate 3 between the second square and the third square and the left wall plate 2 The first left bearing point of the bed, the oblique rib plate 8 in the fourth square, the oblique rib plate 8 in the fifth square, and the vertical rib between the fourth square and the fifth square The junction of the board 3 and the left side wall board 2 constitutes the second left bearing point of the bed, and so on.

The above-mentioned left bearing points and right bearing points are places where rigidity is concentrated, and the lower parts thereof are connected with foot assemblies 4 for supporting the entire bed and adjusting the accuracy of the bed. At the same time, it can also be used as a process benchmark during bed processing. The specific connection method is that the anchor assembly 4 is connected to the lower part of the left wallboard 2 of the left bearing point or the lower part of the right wallboard 9 of the right bearing point. In addition, the two ends of the bed, the bottom of the left wall panel 2 or the bottom of the right side wall panel 9 are also connected with an anchor assembly.

The tops of the left wall panel 2 and the right wall panel 9 are arranged horizontally according to the length direction, respectively, the left X-guided rail backing plate 1, the right X-guided rail backing plate 7, the left side wall panel 2, the right side wall panel 9, and vertical ribs The plate 3 and the top surface of the oblique rib plate 8 are aligned to form a plane, on which the left X-guided rail backing plate 1 and the right X-guided rail backing plate 7 are welded. After welding, the guide rail fixing surface and the rack fixing surface are processed to For the required accuracy, install the left X-guided rail, right X-guided rail and rack on the left X-guided rail backing plate 1 and right X-guided rail backing plate 7, and the gantry is movably connected to the left X-guiding rail and right X-guiding rail , The rack is connected with the gantry driving device.

The upper ends of the vertical rib plate 3 and the oblique rib plate 8 are flush, and between the left X guide rail and the right X guide rail, the top ends of the vertical rib plate 3 and the oblique rib plate 8 are aligned and welded to the left The workbench backing plate 6 parallel to the X guide rail and the right X guide rail is provided with a workbench fixing connector 5 on the workbench backing plate 6 . After welding, process the fixed surface of the workbench to the required accuracy, and install the workbench on the workbench fixing connector 5.

The implementation methods listed above are only for understanding the utility model, and are not intended to limit the technical solutions described in the utility model. Those of ordinary skill in the relevant field can also make many modifications on the basis of the technical solutions described in the claims. All equivalent changes or modifications shall fall within the protection scope of the claims of the present utility model.

Claims (8)

1. the lathe bed structure of a gantry machining center, comprise left side wallboard and right side wallboard, left X direction guiding rail, right X direction guiding rail, lower margin assembly, gantry is movably connected on left X direction guiding rail, on right X direction guiding rail, it is characterized in that: be connected by several vertical gussets perpendicular with left side wallboard and right side wallboard between described left side wallboard and right side wallboard, at described left side wallboard, oblique pull gusset is provided with in the grid of right side wallboard and adjacent one another are two vertical gusset formations, described left X direction guiding rail, right X direction guiding rail is arranged at left side wallboard respectively, the top of right side wallboard.

2. the lathe bed structure of a kind of gantry machining center according to claim 1, it is characterized in that: described left side wallboard, the top of right side wallboard connect left X direction guiding rail backing plate, right X direction guiding rail backing plate respectively, described left X direction guiding rail, right X direction guiding rail are arranged on left X direction guiding rail backing plate, right X direction guiding rail backing plate respectively.

3. the lathe bed structure of a kind of gantry machining center according to claim 1, is characterized in that: the two ends of described oblique pull gusset are connected with left side wallboard, right side wallboard respectively.

4. the lathe bed structure of a kind of gantry machining center according to claim 1, it is characterized in that: the oblique pull gusset direction arranged in described two grids adjacent one another are is contrary, at X to the order of pressing from front to back, brace front edge of board in first grid is connected with left side wallboard, oblique pull gusset rear end is connected with right side wallboard, brace front edge of board in second grid is connected with right side wallboard, oblique pull gusset rear end is connected with left side wallboard, interlocks successively and carries out;

The intersection of the oblique pull gusset in the first grid, the oblique pull gusset in the second grid, vertical gusset between the first grid and the second grid and right side wallboard form lathe bed first on the right side of supporting point, the intersection of the oblique pull gusset in third party's lattice, the oblique pull gusset in square grids, vertical gusset between third party's lattice and square grids and right side wallboard form lathe bed second on the right side of supporting point, by that analogy;

The intersection of the oblique pull gusset in the second grid, the oblique pull gusset in third party's lattice, vertical gusset between the second grid and third party's lattice and left side wallboard form lathe bed first on the left of supporting point, the intersection of vertical gusset between square grids and five-check of the oblique pull gusset in square grids, the oblique pull gusset in five-check, and left side wallboard form lathe bed second on the left of supporting point, by that analogy.

5. the lathe bed structure of a kind of gantry machining center according to claim 4, is characterized in that: described left side supporting point and the bottom of right side supporting point are all connected with lower margin assembly, is used for supporting whole lathe bed and the adjustment carrying out lathe bed precision.

6. the lathe bed structure of a kind of gantry machining center according to claim 5, is characterized in that: described lower margin assembly is connected to the bottom of left side wallboard of supporting point, left side or the bottom of the right side wallboard of right side supporting point.

7. the lathe bed structure of a kind of gantry machining center according to claim 1, it is characterized in that: described vertical gusset, oblique pull gusset upper end are mutually concordant, between described left X direction guiding rail, right X direction guiding rail, vertically the top of gusset, oblique pull gusset be provided with the workbench backing plate paralleled with left X direction guiding rail, right X direction guiding rail, workbench backing plate is provided with workbench fixed connecting piece.

8. the lathe bed structure of a kind of gantry machining center according to claim 1, is characterized in that: the distance between described two vertical gussets adjacent one another are is 1.0 ~ 1.4 times of left side wallboard or right-side wall plate height.